Martin St. Louis and Fredrik Modin added goals in the final five and a half minutes. John Grahame stopped 30 shots for the Lightning.

Bruno Gervais scored his first N.H.L. goal and Alexei Yashin also scored for the Islanders, who trail Montreal by 5 points for the final Eastern Conference playoff spot.

Islanders center Shawn Bates played in his 400th N.H.L. game.

MAPLE LEAFS 1, PENGUINS 0 -- Chad Kilger scored on a penalty shot with 6 minutes 51 seconds remaining and Mikael Tellqvist made 21 saves for visiting Toronto in a game that was delayed twice in the second period by power failures.

Mellon Arena, which opened in 1961, is the oldest in the N.H.L. Ken Sawyer, the Penguins' president, said the outages were related to a small fire near an electrical panel; no evacuations were necessary.

Late in the third period, the Pittsburgh rookie Sidney Crosby broke in alone on Tellqvist; his low wrist shot made it through Tellqvist's pads but went wide.

The Maple Leafs countered with Kilger breaking down the left wing and drawing the call for a penalty shot when defenseman Rob Scuderi tripped him.

Patrick Marleau scored two power-play goals for the Sharks to surpass 400 career points.

Joe Sakic earned his 901st assist to tie Bryan Trottier for 15th on the N.H.L. career list.

RED WINGS 7, CANUCKS 3 -- Jason Williams scored twice and Pavel Datsyuk added a goal and two assists for visiting Detroit, which won its sixth in a row. The Red Wings had a 4-0 lead by 1:30 into the second period.

We are continually improving the quality of our text archives. Please send feedback, error reports,
and suggestions to archive_feedback@nytimes.com.

A version of this article appears in print on March 20, 2006, on Page D00011 of the National edition with the headline: N.H.L. ROUNDUP; Senators Shut Out Devils And Regain First Place. Order Reprints|Today's Paper|Subscribe